Azure Sentinel¶
Azure Sentinel is a cloud-native SIEM platform for detecting, investigating, and responding to threats in real-time. It provides a unified view of security posture and automates threat response across Azure services, on-premises systems, and third-party solutions.
Requirement¶
A global enterprise needs to enhance security operations to detect, investigate, and respond to threats in real-time. The solution must integrate data sources into a single platform for comprehensive threat detection and response.
Requirement Analysis¶
Challenges include: - Integrating data from multiple sources - Real-time threat detection - Automated response actions - Scalability for growing data and threats - Compliance with security and privacy regulations
Solution¶
Azure Sentinel provides: 1. Onboard Data Sources: Connect Azure services, on-premises systems, and third-party solutions using built-in connectors. 2. Create Analytics Rules: Set up rules to detect threats and generate alerts, using built-in or custom KQL rules. 3. Investigate Incidents: Analyze attacks with investigation tools, entity behavior analytics, and incident timelines. 4. Automate Response: Use playbooks with Azure Logic Apps to automate response actions. 5. Proactive Threat Hunting: Search for threats using built-in and custom hunting queries.
Security¶
- Encrypt data at rest and in transit
- Implement role-based access control (RBAC)
- Integrate with Azure Active Directory (AAD) for authentication and authorization
- Enable audit logs for tracking access and changes
Best Practices¶
- Update analytics rules regularly
- Monitor data ingestion
- Automate responses with playbooks
- Conduct regular threat hunting
Cost Optimization¶
- Use pay-as-you-go pricing
- Utilize free data ingestion for certain Microsoft sources
Azure Resources¶
- Azure Sentinel
- Azure Logic Apps
- Azure Monitor
- Azure Active Directory
- Azure Storage